. The call of the hen; or, The science of selecting and breeding poultry for egg-production, by the American poultry school. Poultry. 78 THE CALL OF THE HEN. \sa fran,mch behind the forefinger. If this hen is mated to a male bird of the same type and prepotency, her eggs will be very fertile, and a large number of the progeny will be equal to and some will excel the parent stock in the lines that predominate in the parents. By selecting these few specimens each season for breeding, it is possible to breed a highly valuable type in the course of time. Fig. 43 shows how to hold a bird between th
. The call of the hen; or, The science of selecting and breeding poultry for egg-production, by the American poultry school. Poultry. 78 THE CALL OF THE HEN. \sa fran,mch behind the forefinger. If this hen is mated to a male bird of the same type and prepotency, her eggs will be very fertile, and a large number of the progeny will be equal to and some will excel the parent stock in the lines that predominate in the parents. By selecting these few specimens each season for breeding, it is possible to breed a highly valuable type in the course of time. Fig. 43 shows how to hold a bird between the knees after you become proficient in testing the head while the bird is in a sack. After a little practice you will become so proficient that you can test birds for prepotency without having to put them in a FlG-41—Showing thumb »/8 of an inch behind forefinger; indicating hen has pre- potency full. (See Skull No. 2, Fig. 35.) CHAPTER X. Testing Hens on a Large Scale, Using Charts 44 and 45. I will describe in this chapter how I cull hens when we have large numbers of them, as we have in poultry plants in California. I shall. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Hogan, Walter, d. 1921; American Poultry School. Kansas City, Mo.
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Keywords: ., bookcentury1900, bookdecade1920, booksubjectpoultry, bookyear1921
